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Which molecule, when added to a solution, would give the solution the highest pH? (3 points)HClH2SO4KOHH2O

Question

Which molecule, when added to a solution, would give the solution the highest pH? (3 points)

  • HCl
  • H2SO4
  • KOH
  • H2O
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Solution

The molecule that would give the solution the highest pH when added is KOH.

Here's why:

  1. pH is a measure of the hydrogen ion concentration in a solution. The lower the concentration of H+ ions, the higher the pH.

  2. HCl (hydrochloric acid) and H2SO4 (sulfuric acid) are both strong acids. When they dissolve in water, they increase the concentration of H+ ions, which would lower the pH of the solution.

  3. H2O (water) is neutral, with a pH of 7. Adding it to a solution would not significantly change the pH.

  4. KOH (potassium hydroxide) is a strong base. When it dissolves in water, it produces OH- ions. These ions can react with H+ ions to form water, thereby decreasing the H+ ion concentration and increasing the pH.

So, KOH would give the solution the highest pH.

This problem has been solved

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